1. Students will be able to differentiate between a gene, a DNA molecule, a chromosome, a chromatid, between homologous chromosomes, sex chromosomes and autosomes. They will be able to compare and contrast haploid and diploid cells and how changes in chromosome numbers or structures can affect development. (Click Here For Video!)
a. Cell division allows organisms to reproduce asexually, grow, replace worn out or damaged tissues and form gametes. b. Bacteria reproduce through binary fission. (Click Here For Video!) c. At cell division, each chromosome consists of two chromatids attached at the Centromere. d. Each organism has a characteristic number of chromosomes. (Click Here For Table!) e. Human somatic cells are diploid, with 23 pairs of homologous chromosomes. Human gametes are haploid, with 23 chromosomes. (Click Here For Video!) f. Sex chromosomes carry information that determines an organism’s sex. (Click Here For Video!) g. Changes in chromosome number or structure can cause abnormal development. Karyotypes are used to examine and individuals chromosomes. (Click Here For Video!) (Click Here For Video!) (Click Here For Video!)
2. Students will be able to identify the major events that characterize the five phases of the cell cycle, how it is controlled in eukaryotes and what role it plays in cancer. (Click Here For Video!)
a. The life of a eukaryotic cell, the cell cycle, includes Interphase, mitosis and Cytokinesis.
b. Interphase consists of 3 phases: growth, DNA synthesis and preparation for cell division. A cell about to divide enters the mitosis and cytokinesis phases of the cell cycle. (Click Here For Video!) c. The cell cycle is carefully controlled; failure of control can result in cancer. (Click Here For Video!) (Click Here For Video!)
3. Students will be able to describe the stages of mitosis. (Click Here For Video!)
a. Prophase – Chromosomes condense, nuclear membrane dissolves, and spindles begin to move toward poles. (Click Here For Video!) b. Metaphase – Chromosomes line up along the middle. (Click Here For Video!) c. Anaphase – Spindle fibers guide chromatids to opposite sides of the cell. Nuclear membrane begins to reappear. (Click Here For Video!) d. Telophase – Chromosomes uncoil and spindles disappear. (Click Here For Video!)
4. Students will be able to differentiate Cytokinesis in plants and animals. (Click Here For Video!)
a. Cytokinesis occurs in animal cells when the cell membrane pinches in half. b. A cell plate forms during cytokinesis in plant cells
Chapter 6
1. Students will be able to differentiate between a gene, a DNA molecule, a chromosome, a chromatid, between homologous chromosomes, sex chromosomes and autosomes. They will be able to compare and contrast haploid and diploid cells and how changes in chromosome numbers or structures can affect development. (Click Here For Video!)
a. Cell division allows organisms to reproduce asexually, grow, replace worn out or damaged tissues and form gametes.b. Bacteria reproduce through binary fission. (Click Here For Video!)
c. At cell division, each chromosome consists of two chromatids attached at the Centromere.
d. Each organism has a characteristic number of chromosomes. (Click Here For Table!)
e. Human somatic cells are diploid, with 23 pairs of homologous chromosomes. Human gametes are haploid, with 23 chromosomes. (Click Here For Video!)
f. Sex chromosomes carry information that determines an organism’s sex. (Click Here For Video!)
g. Changes in chromosome number or structure can cause abnormal development. Karyotypes are used to examine and individuals chromosomes. (Click Here For Video!) (Click Here For Video!) (Click Here For Video!)
2. Students will be able to identify the major events that characterize the five phases of the cell cycle, how it is controlled in eukaryotes and what role it plays in cancer. (Click Here For Video!)
a. The life of a eukaryotic cell, the cell cycle, includes Interphase, mitosis and Cytokinesis.b. Interphase consists of 3 phases: growth, DNA synthesis and preparation for cell division. A cell about to divide enters the mitosis and cytokinesis phases of the cell cycle. (Click Here For Video!)
c. The cell cycle is carefully controlled; failure of control can result in cancer. (Click Here For Video!) (Click Here For Video!)
3. Students will be able to describe the stages of mitosis. (Click Here For Video!)
a. Prophase – Chromosomes condense, nuclear membrane dissolves, and spindles begin to move toward poles. (Click Here For Video!)b. Metaphase – Chromosomes line up along the middle. (Click Here For Video!)
c. Anaphase – Spindle fibers guide chromatids to opposite sides of the cell. Nuclear membrane begins to reappear. (Click Here For Video!)
d. Telophase – Chromosomes uncoil and spindles disappear. (Click Here For Video!)
4. Students will be able to differentiate Cytokinesis in plants and animals. (Click Here For Video!)
a. Cytokinesis occurs in animal cells when the cell membrane pinches in half.b. A cell plate forms during cytokinesis in plant cells
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